
<template>
  <div class="quarter-picker">
    <div class="quarter-picker-inner">
      <div class="quarter-picker__header">
        <!-- 左边按钮 -->
        <i class="el-icon-d-arrow-left" @click="handlePrevYear"></i>
        <!-- <span v-else class="empty-arrow"></span> -->

        <div class="quarter-picker__title">{{ year }}</div>

        <!-- 右边按钮 -->
        <i class="el-icon-d-arrow-right" @click="handleNextYear"></i>
        <!-- <span v-else class="empty-arrow"></span> -->
      </div>

      <div class="quarter-picker__options">
        <template v-for="item in options">
          <div class="quarter-picker__item" v-bind:key="item.value" :data-value="item.value"
            @click="handleItemClick(item)" :class="{
              //  'quarter-picker__item__today': item.value == now_quarter,
              'quarter-picker__item--active': quarter.includes(item.value),
            }">
            <div class="quarter-picker__item__label">{{ item.label }}</div>
          </div>
        </template>
      </div>
    </div>
  </div>
</template>
   
<script>
// created at 2022-04-22
import dayjs from 'dayjs'
import { quarter_options } from './config.js'

//   var quarterOfYear = require('dayjs/plugin/quarterOfYear')
//   dayjs.extend(quarterOfYear)

export default {
  name: 'quarter-picker',

  props: {
    // 当前年
    year: {
      type: Number,
      default: () => {
        return dayjs().year()
      }
    },

    // 当前季度 ['2022-1']
    quarter: {
      // type: all,
      // default: () => {
      //   return []
      // }
    },

    // 当前日期
    // value: {
    //   type: Array,
    //   default: () => { return [] },
    // },

    // 显示左边按钮
    showLeft: {
      type: Boolean,
      default: true
    },
    // 显示右边按钮
    showRight: {
      type: Boolean,
      default: true
    }
  },

  components: {},

  data() {
    let now = dayjs();
    let now_year = now.year()
    // let now_quarters = now.quarter()
    // let now_quarter = `${now_year}-${now_quarters}`

    return {
      now_year,
      now_quarter: ""

    }
  },

  computed: {
    options() {
      return quarter_options.map((item) => {
        return {
          label: item.label,
          value: `${this.year}-${item.value}`,
          year: this.year,
          quarter: item.value
        }
      })
    }
  },

  methods: {
    async getData() { },

    handleItemClick(item) {
      // console.log(item)
      this.$emit('on-quarter-click', item)
    },

    handlePrevYear() {
      let year = this.year - 1
      this.$emit('update:year', year)
      this.$emit('on-year-change', year)
    },

    handleNextYear() {
      let year = this.year + 1
      this.$emit('update:year', year)
      this.$emit('on-year-change', year)
    }
  },

  created() {
    this.getData()
    console.log(this.quarter)
  }
}
</script>
   
<style lang='scss'>
.quarter-picker {
  border-right: 1px solid #e5e6eb;
}

.quarter-picker-inner {
  padding: 8px 16px;
}

.quarter-picker__header {
  display: flex;
  justify-content: space-between;
  font-size: 12px;

  // padding: 8px 16px;
  border-bottom: 1px solid #e5e6eb;

  .el-icon-d-arrow-left,
  .el-icon-d-arrow-right,
  .empty-arrow {
    cursor: pointer;
    width: 24px;
    height: 24px;
    font-size: 12px;
    line-height: 24px;
    text-align: center;
    border-radius: 50%;
    transition: all 0.1s cubic-bezier(0, 0, 1, 1);
    user-select: none;

    &:hover {
      background-color: #e5e6eb;
    }
  }

  .empty-arrow {
    cursor: auto;

    &:hover {
      background-color: transparent;
    }
  }

  .quarter-picker__title {
    flex: 1;
    color: #1d2129;
    font-size: 14px;
    line-height: 24px;
    text-align: center;
  }
}

.quarter-picker__options {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 14px 16px;
}

.quarter-picker__item {
  padding: 4px;
  cursor: pointer;
  position: relative;
}

.quarter-picker__item__label {
  border-radius: 24px;
  color: #000;
  background-color: #fff;
  // font-weight: 500;
  height: 24px;
  font-size: 14px;
  line-height: 24px;
  text-align: center;
  width: 80px;
}

.quarter-picker__item--active .quarter-picker__item__label,
.quarter-picker__item:hover .quarter-picker__item__label {
  background-color: #409eff;
  color: #fff;
}

.quarter-picker__item__today:after {
  position: absolute;
  bottom: -2px;
  left: 50%;
  display: block;
  width: 4px;
  height: 4px;
  margin-left: -2px;
  background-color: #409eff;
  border-radius: 50%;
  content: '';
}
</style>
